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超聲振動(dòng)輔助微細(xì)銑削加工尺寸精度實(shí)驗(yàn)
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國(guó)家自然科學(xué)基金資助項(xiàng)目(50875157)和高等學(xué)校博士點(diǎn)專項(xiàng)科研基金資助項(xiàng)目(20090131110031)


Effects of the Ultrasonic Vibration on Dimensional Accuracy in Micro Milling
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    摘要:

    實(shí)驗(yàn)研究了利用進(jìn)給方向超聲振動(dòng)輔助微細(xì)銑削對(duì)零件加工尺寸精度的影響,。以2A12為實(shí)驗(yàn)工件材料，利用一個(gè)超聲振子帶動(dòng)工件沿進(jìn)給方向振動(dòng)進(jìn)行銑槽實(shí)驗(yàn),，加工后對(duì)槽寬進(jìn)行了精確測(cè)量。通過(guò)單因素實(shí)驗(yàn)分析了施加超聲振動(dòng)前后加工槽寬的變化,，結(jié)果表明超聲振動(dòng)有助于減小加工尺寸偏差,，而大的振幅更有利于提高加工尺寸精度；基于日本田口方法,，通過(guò)全因子實(shí)驗(yàn)考察了主軸轉(zhuǎn)速,、每齒進(jìn)給量、振幅對(duì)加工尺寸偏差的影響并進(jìn)行了加工參數(shù)優(yōu)化,。

    Abstract:

    The purpose is to investigate the effects of the ultrasonic vibration on dimensional accuracy in micro milling process. Several slotmilling experiments were conducted with aluminium alloy as the workpiece material. The desired vibration was proposed from the workpiece side by an ultrasonic vibrator. The width of slot produced by end milling was precisely measured. A one-factor experiment was conducted at first to analyze the variation of slot width before and after ultrasonic vibration was applied, and the experimental results indicated that ultrasonic vibration made contribution to the decrease of size deviation and larger amplitude tends to reduce the slot width oversize. A full-factor experiment was carried out accordingly based on Taguchi method to optimize the parameters involving spindle speed, feed per tooth and vibrating amplitude. 

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沈?qū)W會(huì),張建華,邢棟梁,董春杰.超聲振動(dòng)輔助微細(xì)銑削加工尺寸精度實(shí)驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2011,42(3):229-233. Shen Xuehui, Zhang Jianhua, Xing Dongliang, Dong Chunjie. Effects of the Ultrasonic Vibration on Dimensional Accuracy in Micro Milling[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(3):229-233.

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